13008644 has 24 divisors (see below), whose sum is σ = 25443936. Its totient is φ = 5768000.

The previous prime is 13008643. The next prime is 13008647. The reversal of 13008644 is 44680031.

13008644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13008643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1802 + ... + 5409.

It is an arithmetic number, because the mean of its divisors is an integer number (1060164).

Almost surely, 2^13008644 is an apocalyptic number.

It is an amenable number.

13008644 is a deficient number, since it is larger than the sum of its proper divisors (12435292).

13008644 is a wasteful number, since it uses less digits than its factorization.

13008644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7267 (or 7265 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 13008644 is about 3606.7497833922. The cubic root of 13008644 is about 235.1855724487.

Adding to 13008644 its reverse (44680031), we get a palindrome (57688675).

The spelling of 13008644 in words is "thirteen million, eight thousand, six hundred forty-four".